Coke-oven-door-lifting machine



- 1. BECKER. COKE OVEN DOOR LIFTING MACHINE.

Patented Apr.'4, 1922. I

5. SHEEIS-SHEET I.

APPLICATION FILED DEC-2,191 8.

J. BECKER. COKE OVEN DOOR LIFTING MA CH|NE.

APPLICATION FILED DEC. 2, 1918- Patented Apr. 4, 1922.

5 SHEEI'SSHEET 2.

M 'l 32 W #77531 V J. BECKERL COKE OVEN DOOR LIFTING MACHINE.

Patented Apr. 4, 1922, I

APPLICATION FILED DEC.2, 1918. 1,411,262.

. 5 SHLETS-SHEET 3.

J. BECKER.

Patented Apr. 4, 1922.

.5 SHtEISSHEET 4.

Ilia 0 o I COKE OVEN DOOR LIFTING MACHINE.

APPLICATION HLED DEC .2, 1918.

lllllllllllllllllllllllllllll Hull.

J. BECKER-.

COKE OVEN DOOR LIFTING MACHINE.

- APPLICATION FILED DEC.2, I913- 1,41 1,262. Patented Apr. 4, 1922.

, 5 SHEEIS-SHEET 5.

UNITED STATES PATENT OFFICE.

JOSEPH BECKER, OF PITTSBURGH, PENNSYLVANIA, .ASSIGNOB TO THE KOPPEBSCOMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYL- VANIA.

COKE-OVfl-DOOBrIlIFTING MACHINE.

Patented Apr. 4, 1922.

Application filed December 2, 1918. Serial No. 264,965.

T 0 a]? 'uhomitma-y concern:

Be it known that I, JOSEPH BECKER, (assignor to The Koppers Company, acorporation of Pennsylvania.) acitizen of the I'nited States, andresiding in Pittsburgh, in the county of Allegheny and State of Penn"-sylvania. have invented a new and useful Improvement inCoke-Oven-Door-Lifting Machines, of which the following is aspecification. ,1

This invention relates to door lifting and moving mechanisms and hasparticular reference to devices of this character provided to operatethe doors of coking chambers in coking plants and the like, although itwill be manifest as the invention is better understood that it has othervaluable applications. It also relates to the coke guides provided tocarry the coke as it is pushed out of the coking chamber and efl'ectasuitable disposition thereof.

Prior to my invention it has been frequently the custom to provide aplatform or bench adjacent and justbeneath the oven' floors and to mounton this bench two rails forming tracks upon which the door operatingmechanism moves along the battery of ovens. Both the oven doors and themechanism are of great weight and the platform or bench, which is raiseda considerable distance above the ground. must be wide enough toaccommodate the two tracks spaced well apart and strong enough tosupport the necessarily great weight.

One of the objects of the invention is to provide a door operatingmechanism mounted directly upon the ground or upon the foundations ofthe coking plant thereby eliminating the necessity of providing thestrong and expensive bench or platform to carry the door lifting andoperating mechanism.

Another object of the invention is the provision of a coke-oven dooroperating mechanism of great power and convenient form, and operatingreadily in close proximity with the face of the oven battery withoutimposing great strain on the battery structure.

Another object of the invent-ionis the provision of a coke guide todeliver the hot charge of coke from the ovens over the small and lightfoot bench or platform I substitute for the heavy and expensive oneprovided to carry the heavy.door lifting mechanism in many priorconstructions.

Another object of the invention is the provision of a door liftingmechanism and operating mechanism and coke guide mounted upon the, sametruck or forming parts of a single unit of mechanism and operable withpower mechanism common to both.

Other objects and advantages of the invention will be apparent as it isbetter understood from the following description when considered inconnection with the accompanying drawing illustrating apreferredembodiment thereof.

On the drawing,

Figure 1 is a front elevation of a portion of a battery of ovens andshowing a combined door. operating mechanism and coke guide embodying myinvention;

Fig. 2 is a section taken substantially on the line 22 of Fig. 1; r

Fig. 3 is a section taken substantially on the line 33 of Fig. 1.;

Fig. 4 is a section taken substantially on the line H of Fig. 2;

Fig. 5 is a transverse. section taken vertically through the lowerportion of the truck carrying the door lifting mechanism and coke guide;

Fig. 6 is a detail section through an upper roller of said truck;

Fig. '7 is an end elevationof the combined door lifting and operatingmechanism and coke guide, the oven battery being shown partiallyin'section; 1

Fig. 8 is an enlarged section showing certain details of construction ofthe hanger support for the door suspending 'mechanism; and

Fig. 9 is a partial section taken substan-- tially on the line 9-9 ofFig.7.

For the purpose of illustrating my inventionl have shown on the drawinga coking plant or battery, comprising a plurality of coking chambers 21,it being understood that the usual combustion chambers alternate withsuch coking chambers. These coking chambers are closed by the usualdoors 22 composed of an iron outer shell 23 and an internal brick heatinsulation 24. The

the oven floor 28.

coking ovens and combustion chambers are At the front wall of the ovensthe usual I reinforcing vertically extending heavy I- beams, channelirons or other structural metal member 26 are provided and to theseupright reinforcements is secured a channel iron 27 extending along theside of the oven battery with its top edge just beneath Two cleats 29are secured upon the outer face of each door by bolts 31 or othersuitable fastening means, which cleats are adapted to be engaged by thedoor lifting mechanism to lift and remove the door from its opening.

In the embodiment. of my invention shown on the drawing, I mount. asingle rail 32 upon the ground or upon the foundation of the plant orbattery and upon this rail and leaning slightly against the plantorbattery of ovens the door lifting and operating mechanism is supportedand moves as occasion may require. This mechanism comprises a verticallydisposed truck 30 upon which a suitable framework 33 is rigidly mounted.The truckis carried by two or more flanged wheels 34 running on the rail32, and the frame 33 has a. part 35 extending inwardly toward the ovensin the end of which part are mounted rollers 36 'which engage a track orrail 37 mounted upon the upright reinforces 26 and above the oven doors.The upright portion of the frame consists of three main columns 38 ofstructural metal beam construction braced by cross-braces 39 andconnected by horizontal members 41 at the bottom and 42 at the top, boththe members 41 and 42 being fabricated beams of structural iron orsteel. The member 41 forms the body of the truck 30 and carries beneatheach end upright a pair of down- I wardly extending bearing brackets 46in which a shaft 47 carrying a wheel 34 is posi tioned.

The horizontally extending portion 35 of the frame consists of threeinwardly extending fabricated or built up beams 48, each connected tothe upper end of the vertical part 33 of the frame. and to a similarbeam 49 disposed along side the ovens and above the doors. the tworollers 36 being mounted on shafts 51engaging in bearings 52 in thislast mentioned beam.

The door lifting and moving device is carried by a truck which ismovable toward and away from the door opening in the main frame.

This truck consists of a body 54 from which four bearings 55 extendupwardly and carry two shafts 56 on which are mount ed four flangedwheels 57. These wheels the ovens at 63. The depending arm 62 isprovided with a pair of spaced bearings 64 for a vertically slidingdevice 65 carrying a pair of hooks 66 which are adapted to engage incleats when the truck is in receiving position and the sliding device israised. The bearings 64 provide opposed channels 67 in which edges orflanges 68 of the sliding device may move. The movement lifting the dooris accomplished by the lever 69 pivoted at 68 on the depending arm 62connected to a link 71 which is pivoted to an ear or cam 72, pivotallyconnected to the sliding device 70. The end of the lever is disposedadjacent a platform 73 carried in the upright part of the frame and uponwhich an operator or attendant may stand. Downward movement of the leverraises the door and the truck carrying the depending arm 62 is thenmoved away in an outward direction from the oven w-rrying with it thedoor. This movement is produced by a motor 81 carried upon the beam 41at the bottom of the frame and forming a portion of the main truck.Power is delivered from this motor through speed reducing gearing 82 tothe bevel gear 83 on the stub shaft 84 carried in the bearings 85 on themotor housing.

The bevel gear 83 meshes with a similar gear 86 on the end of thevertical shaft 87 having bearings at 88 and 89 on the right hand uprightviewing Fig. 1. The vertical shaft 87 isprovided with a worm 90 whichengages av worm wheel or gear 89 upon a shaft 91 mounted in horizontalposition just beneath the truck body, this shaft having bearings at 92on the central upright 33 and in a housing 93 on the right hand endupright. A pinion 94 carried by this shaft engages a rack 95 mountedbeneath and secured to the body of the truck. The motor is under thecontrol of the attendant on the platform and after lifting the door hestarts moved along the rail 32 and to this end a second motor 101 isprovided upon the main truck 30. This motor drives a gear 102 upon ashaft 103 and through the agency of a pinion 104 on the armature shaft,the shaft 103 is journalled adjacent the ends of the truck in bearings105 and carries two bevel pinions or gears 106' meshing respectivelywith similar bevel gears 10? upon .stub shafts 108 having bearings at109 on over and beyond the track 32 and since this track is located at agreater distance from the oven than the edge 114 of the relativelynarrow bench or platform 115, which is provided along and just beneaththe oven entrance, the coke guide is adapted to discharge the coke overthis platform also.

This coke guide consists of a skeleton structure of any preferredconstruction, being made up in the present instance of vertically spacedhorizontally extending slats 115 connected upon the inner side of theframework formed of vertical arches 116, 117, 118 and 119 and diagonalbraces 121. The ends of the slats adjacent the oven are turned out asindicated at 122 to prevent the charge of coke catching on the guide andthe lower slats are interrupted between the arches 117, 119 in order topermit facilitation of inspection of the coke by an attendant standingupon the bench. The coke guide is supported under its forward end at 123in the vertical portion of the frame of the apparatus resting upon thecross brace 124. It is supported at its end adjacentthe oven by truck125 shown in detail in Fig. 9 and mounted upon a rail 126 located uponthe bench and battery of ovens. The truck 125 consists of a-frame havinga low hanging central portion 127 and provided with a pair of flangewheels 128 one located at each end of the truck and beyond the ends ofthe guide. The guide is also connected with the frame of the apparatusby a hanger 131 which provides a certain flexibility permitting theweight of the coke to be borne in part by the bench.

In order that the apparatus may under no condition fall over and awayfrom the oven I provide a channel guide 137 secured upon the upper endsof the reinforcements 26 and engaging with an upturned lip132 upon anextension 133 of the frame. There is little or no tendency, however, forthe apparatus to fall away from the oven and this guide and extensionneed not be of particularly heavy construction since its sole functionis to insure against an overbalancing when the apparatus is not carryingthe door or guiding the charge of coke or both.

It will be manifest from the foregoing that by far the greater part ofthe apparatus is supported from the ground or foundation and through thetruck 30 riding upon the rail 32. The truck leans over only slightlytoward the oven and the pressure against the oven walls is thereforelight. The bench carries merely a portion of the coke guide and thisupon the rail close to the oven and consequently can be made of lightstructure and supported by brackets 131, a cumbersome and expensivestructure heretofore frequently employed being not necessary where thefunction of the invention is used.

The coke guide and door lifting and operating mechanism are combined ina single unitary apparatus, the door lifting mechanism being preferablylocated between the one end upright and the center upright and 90 thecoke guide being located between this center upright and the other endupright.

In thus providing the coke guide and the door operating mechanism in oneapparatus it is only necessary in discharging the coke to position thedoor lifting mechanism before the door of the oven to be dischargedoperating it to remove the door and then moving the apparatussufliciently to bring the coke guide into place, such movement beinglittle more than sufficient to move the door from in front of the ovenopening. The coke being discharged across the coke guide. the operationmaybe reversed to replace the door.

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and it will beapparent that various changes may be made in the form, construction andarrangement of the parts without departing from the spirit and scope ofthe invention or sacrificing all of its material advantages. the formhereinbefore described being merely a preferred embodiment thereof.

. I claim:

1. In combination: a battery of cokeovens having coking chambers whoseends are provided with removable doors; a door; operating machine ofcrane type, with ground-rail support therefor and adapted to traveltransversely in front of. the door openings; a bench extending along theface of the battery under the door-openings; and a platform secured tothe front of the doorlifting machine and constituting a movableextension of said bench; whereby the said bench may be made narrow andof light construction and yet provide, in conjunction with saidplatform, the required working room for operators in the removal andreplacement of the doors.

2. In adoor operating machine for coke ovens, in combination: ,a trucksupported both from the ground level of the coke oven and from a sidewall of the same, and movable across the door to be operated; and dooroperating mechanism carried by said truck for engaging andlifting thedoor; substantially as specified.

3. In combination with a coke oven, a rail at the ground level of thecoke oven, a rail secured on the side wall of said oven, a trucksupported by and movable along both said rails, and coke oven dooroperating mechanism carried by said truck; substantially as specified. L

4. In combination with a coke oven, a monorail supported at the groundlevel of the oven, a truck supported by said monorail and also by theside wall of the oven, and door operating mechanism carried by saidtruck, substantially as specified.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing

